Water-heater for gas or gasoline stoves



(No Model.) v A..B. NEWKIRK. WATER HEATER FOR GAS 0R GASOLINE STOVES.

AIDMSON` BENTLEY NEWKIRK,

s l; este..

OF LOS ANGELES, CALIFORNIA.

WATER-HEATER FOR onsv on cAsoLlNE sTovE's.

SPECIFICATION forming part Of Letters Patent, NO. 540,868, dated J' une 1l., 1895.

Application filed October 11, 1893. Serial No. 487,809. (N0 model.)

To all whom it may concern.-

Y Be it known that I, ADAMsoN BENTLEY NEWKIRK, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California,` have invented certain new and usefulvlmprovements in Water-Heaters for Gas or Gasoline Stoves, of which the following is a specification.

My invention relates to heatingdevices for use in connection with gas or gasoline stoves, and other'heat sources, and the objects in -View are to provide a simple,inexpensive and economical heating apparatus adapted to be permanently connected with a tank or water container, and arranged in such a position with relation to a burner or heat source as to utiliz'e a maximum quantity of heat energy; furthermore, to provide simple and efficient .means for mounting the heater, proper, whereby it may be withdrawn from its operative position with relation to the burner or heat source, to'permit the latter to be used for ordinary culinary purposes, and furthermore to provide, in connection withsaid means for mounting, an improved construction of swiveljoint,whereby the heater may be adj usted, and may be arranged in any desired position', without affecting the circulation of water, and Without causing leakage. l

Further objects and advantages of my invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective view of a heating apparatus embodying my invention connected operatively to a watertank and arranged in position adjacent to the burner of a stove, the heater being shown in to the plane of Fig. 2.

full lines in its elevated or inoperative posi.- tion and being indicated in dotted lines in its lowered oroperative position. Fig. 2 is a sectional View of the heater on the line 2 2 of Fig. l parallel with the lengths of the coil. Fig. 3 is a section on the lines 3 3 of Fig. 1 and 3 3 of Fig. 2, the same being at right angles Fig. 4. is a detail longitudinal section of one of the swivel-joints.

Similar numerals of reference indicate corresponding parts in all the figures ofthe drawings.

My improved heater comprises a heatingand' upper ends.

coil 1, disposed in a fiat rectangular concentrating case 2, said case having an'open lower side and a closed upper side provided with vent-openings 3. This case is slightly larger than the burner opening 4, and the lower edges of the sides of the case are adapted to bear snugly .upon the upper surface of the stove top 5, whereby all of the heat from the burner is' caused Ato pass upward through the casing andhence come in contact with the circulating coil. The coil consists of a continuous pipe arranged in parallel horizontal adjacent sets or layers, each set or layer comprising a series of parallel lengths of' pipe, arranged at intervals to provide intervening spaces. The lengths of the upper or secondary set or layer are arranged over the spaces between the lengths of the lower or primary set or layer, andthe terminal lengths of the two series, atone .end of the case, are connected to provide a4 continuous circulation. The said pipe comprising the circulating coil may be constructed, as shown in the drawings, of a series of short sections of pipe connected by elbows 6.

The terminals ofthe pipe forming the coil are extended outward through the side of the casing as shown at 7 and S, the former being connected by means of an interposed coupling or swivel-joint 9 with an inlet-pipe 10, and the latter being connected by a similar swivel-joint 11, with an outlet-pipe 12, the inlet and outlet pipes 10 and 12 communicating with a tank 13, respectively, at its lower Said tank is provided with a supply pipe 11i, which extends to a point near the bottom of the tank and a discharge pipe 15, communicating with the top of the tank. An outlet or relief faucet also communicates'with the tank.

The terminals 7 and 8, of the heating-coil, after extending a shortdistance beyond the wall of the casing perforated thereby, are bent for deiiected laterally to form trunnions 16 and 17, which are axially aligned land are mounted in bearings 18, in the upper ends of IOO will be understood that this special construction may be varied to suit the particular con- 'ditions under which the heater is used.

The horizontal tubular trunnious 16 and 17, are connected with the adjacent terminals of the inlet and outlet `pipes 10 and 12, by means of interposed couplings 9 and 11, as before indicated, and as these couplings are identical in construction a detailed description of one, in connection with the detail View, Fig. 4, Will suffice for both. Referring to said Fig. 4, 2l represents the threaded terminal of the inlet pipe 10, upon which `is threaded a coupling plug 22. This coupling plug is exteriorly threaded to fit within and engage the threaded bore of a coupling sleeve 23, having at an intermediate point a packing flange 24, which bears against a terminal flange 25 on the trunnion 16, whereby said terminal flange 25, is arranged between and is in contact at opposite sides with `the extremity of the coupling plug 22 and the contiguous face ofthe packing flange 24. Threaded in the outer end of the lsleeve 23, and having a smooth bore to receive the trunnion 16, s a packing plug or bushing 2'6, Wh'ich bears at its inner end against the compressible packing 27, which is interposed between 'said plug and theadjacentsurface of the packing flange 24. From this description it will be obvious that the terminally flanged trunnion 1G -is free to rotate within the bearing formed by the packingauge and the packingplug or bushing, and is held fromlongitudinal displacement or vibration by the contiguous sur faces of the coupling plug 22 and packing flange 24. A suitable number of elbows 2S, and short pipe sections 29 may be interposed between the coupling and the body portion of the inlet pipe 10, and a similar construction may be adopted in connectionwith the outlet pipe 12 in order to bring the axis of the trunnion 17 in alignment with the axisof the trunnion 16.

The portion of the coil opposite to the extended terminals thereof is held in the casing by means of the metallic clip 30, and attached tothe outer surface of the correspond ing wall of the casing is a finger hold 8l.

The operation of the heating apparatus will be clearly understood from the foregoing description, and it will be seen that as the heat rises from the burner it comes in contact with the lower series of the coil and upon rising through the intervening spaces comes in contact with the lengths of the upper series. Thus the heat which is not utilized or absorbed by the lower series of lengths is brought into immediate contact with the upper series, and only after leaving the latter` can the residue escape through theventopenings provided in the top of the casing, to cause an upward draft or circulation.

In order to secure an effective concentration of the heat within the casing and around the heating coil I prefer to provide the casing with an interior non-conducting lining 32, of asbestos or other like material. side of the casing being open fits over the opening in the stove in connection with which it is used and thus causes all the heat to pass through the casing. The heat is held from radiating from the sides and top of the casing by the asbestos lining and is forced to pass through the outlet openings 3, whereby, the top of the casing being flat, articles may be arranged upon the same, where they will be exposed to all the heat not absorbed by the pipes. Thus, cooking may be accom plished on the stove while the water heating device is in use, and hence all of the heat may be utilized.

In practice, Various changes in the form, proportion and minor details of construction maybe 'resorted to Without departing from the spirit or sacrificing any of' the advantages ofthe invention.

Having thus described my invention, l claim- 1. The combination with a heating device having a burneropening, of a swiveled water heating coil adapted to be arranged horizontally over the burner opening, a casing secured to and carried by thecoil, said casing having an open bottom, adapted to fit over said burner opening, and a perforated top which is parallel with the coil and is adapted to occupy a horizontal position when thc coil is in its operative position, and a heat non absorbent lining in thecasing, whereby the heat which enters the open lower side passes around the coil -and the surplus heat escapes through the perforaiions in the top to reach vessels resting upon the said top, substantially asspecified.

2. The combination with stationary inlet and outlet pipes, of a heating-coil having its terminals extended to form co-axial tubular trunnious having terminal lateral flanges, bearings `for the said trunnious, an intcriorly threaded-sleeve inclosing the end of each trunnion and provided with an interior packingllange to bear against the terminal flange of said trunnion, a coupling plug threaded upon the extremity of one of said pipes and engaging one end of said sleeve, a packing The-lower ICO plug or bushing threaded inthe other end of 1 said sleeve and having a smooth bore to form a bearing for the trunnion, and compressble packing interposed between the packing flange and the'contiguous end of the packingplug or bushing, substantially as specified.

ADAMSON BENTLEY NEWKIRK. Witnesses:

'JAMES R. ToWNsEND,

ALFRED I. TowNsnND. 

